4
MCQ (Single Correct Answer)
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is
A
autosomal dominant
B
autosomal recessive
C
sex-linked dominant
D
sex-linked recessive
5
MCQ (Single Correct Answer)
In sickle-cell anaemia glutamic acid is replaced by valine. Which one of the following triplet codes for valine?
A
G G G
B
A A G
C
G A A
D
G U G
6
MCQ (Single Correct Answer)
Person having genotype $\mathrm{I}^a \mathrm{I}^b$ would show the blood group as AB . This is because of
A
pleiotropy
B
codominance
C
segregation
D
incomplete dominance
7
MCQ (Single Correct Answer)
ZZ/ZW type of sex determination is seen in
A
platypus
B
snails
C
cockroach
D
peacock
8
MCQ (Single Correct Answer)
A across between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
A
TT and Tt
B
Tt and Tt
C
TT and TT
D
Tt and tt